FIELD: printed-circuit board manufacture. SUBSTANCE: substrate is made in the form of laminated stack of basalt fabric impregnated with polymeric binder doped with boron nitride powder in the amount of 2-10% of binder mass. Powder grain size is 0.5-20 mcm. Boron nitride is introduced in polymeric binder prior to impregnating basalt fabric. EFFECT: improved thermal stability, thermal and insulating properties of substrate. 2 cl, 3 tbl
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